Retract 1 move

  
Problem

Retract 1 move!


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Viktor Shishkin    (2011-09-20 21:39:27)
Retract 1 move!

ChessPosition (see diagram) Retract 1 move, and #2.


8
7
6
5
4
3
2
1
a b c d e f g h




Philip Roe    (2011-09-20 22:04:05)
Retract 1 move!

Do you mean retract one move and give mate instead? In that case retract R(b5)xB(b8) and play Rxa5.


Viktor Shishkin    (2011-09-20 22:23:05)
Retract 1 move!

No. this is mate in one move. You will find mate in 2 moves.


Philip Roe    (2011-09-21 01:11:07)
Retract 1 move!

In that case, retract pc7xBb8=R, and play c8=Q.